feat(VFileUpload): add new component

[johnleider]

Motivation and Context

closes #8812

Markup:

    <template #item="{ props: itemProps }">
      <v-file-upload-item v-bind="itemProps" lines="one" nav>
        <template #prepend>
          <v-avatar size="32" rounded />
        </template>

        <template #clear="{ props: clearProps }">
          <v-btn color="primary" v-bind="clearProps" />
        </template>
      </v-file-upload-item>
    </template>
  </v-file-upload>
  <pre>{{ JSON.stringify(file, null, 2) }}</pre>
  <br>
  <br>
  <br>
  <v-file-upload density="comfortable" />
  <br>
  <br>
  <br>
  <v-file-upload density="compact" />
</div>

<script setup> import { ref, watchEffect } from 'vue' const model = ref(null) const file = ref(null) </script>

</details>